American Airlines’ annual fundraising campaign for Stand Up To Cancer (SU2C) has taken off, and this year’s efforts get a celebrity copilot: actress and singer Mandy Moore. (Watch the This Is Us star in the SU2C video above.)

The campaign runs through September 30 and offers customers 25 bonus American Airlines AAdvantage miles for every dollar they donate of $25 or more to SU2C. Customers who use their American Airlines AAdvantage Mastercard credit card to donate between $25 and $10,000 will receive 50 bonus AAdvantage miles per dollar until $1 million has been raised.

“The outpouring of support from our generous team members and customers has been remarkable in our six-year partnership with Stand Up To Cancer,” American Airlines chief communications officer Ron DeFeo said in an SU2C press release. “That’s a testament to how passionate we are about Stand Up’s mission.”

Moore has been involved in the organization since it formed in 2008 and is now a SU2C Ambassador. “It was just a no-brainer to get involved,” she said in a Hollywood Reporter interview. Her relationship with American Airlines spans even longer: Her recently retired father, Don, was a pilot for the airline for 40 years, and her stepmom is a flight attendant for the airline.

“It has been truly amazing to see scientists, patients, actors, musicians and athletes all come together for one common cause—the fight against cancer,” Moore said in the press release. “To do this in partnership with them and American Airlines, a company so close to my heart, is truly a full-circle moment. For many, cancer is a part of life’s journey, and through this campaign, I hope we can raise awareness for Stand Up To Cancer’s groundbreaking cancer research programs while inspiring cancer survivors, patients and those caring for a loved one facing the disease.”

Since the start of its collaboration with SU2C in 2016, American has raised more than $11 million for SU2C.

“This year alone, nearly 2 million people in the U.S. will be diagnosed with cancer,” said Rusty Robertson, SU2C cofounder, in the press release. “Stand Up To Cancer is committed to funding innovative cancer research and dealing with health equity in cancer clinical trials to ensure treatments are accessible and beneficial to all patients. We are immensely grateful to American Airlines and their customers for their longstanding support and to Mandy Moore for her participation in this campaign. Together, we can and will end this terrible disease.”

For a collection of Cancer Health articles about SU2C, click #Stand Up To Cancer.